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排序方式: 共有833条查询结果,搜索用时 15 毫秒
11.
浅谈工程量清单计价的造价管理 总被引:2,自引:0,他引:2
工程量清单计价是适应工程造价改革的一种新的计价方式,与传统的计价方法相比,具有明显的优点,计价方法更趋合理、准确、有效,做好工程量清单计价的造价管理才能保证我国工程造价工作尽快融入世界经济。 相似文献
12.
姚嘉五 《广东水利电力职业技术学院学报》2003,1(2):10-12
本文对我院首届行政管理与办公自动化专业学生文化与专业素质的自我评价作了分析。分析提示:文化素质呈主流正向性、多层次性、多元性和优劣并存的特点;专业素质呈以正向性为绝对主流的特点;班级之间有文化素质上明显的差别性和专业素质上一定程度的层次性。 相似文献
13.
煤炭资源计价模型探讨 总被引:1,自引:1,他引:1
对煤炭资源计价实行有偿开采, 对于解决我国煤炭资源管理中存在的问题有着十分重要的意义. 在借鉴矿产资源计价模型的基础上, 提出了煤炭资源的计价模型. 相似文献
14.
煤炭资源资产评估理论和方法的研究 总被引:11,自引:1,他引:11
以劳动价值理论为基础, 综合运用矿山( 资源) 地租理论和环境价值理论, 提出了矿产资源价值由地勘劳动价值、潜在收益价值和环境价值3 部分构成. 在分析煤炭资源资产评估特点的基础上, 建立了煤炭资源资产评估的一般模型、地勘劳动价值评估模型、基于聚类的模糊评判分类模型、人工神经网络分类模型、潜在收益价值评估模型及煤炭资源资产环境价值评估模型.针对不同类别的煤炭资源资产, 应用所提出的理论和方法, 进行了实例研究和模型检验. 相似文献
15.
Benefits valuation of potable water quality improvement in Malaysia: the case of Kajang Municipality
This article estimates the benefits of potable water quality improvements in Kajang Municipality in the state of Selangor, Malaysia, using the avertive cost method. Households were willing to pay MYR 322 annually to improve potable water quality. This represents about 80% of their average annual water bill. The present value of aggregate benefits over a period of 30 years at various social discount rates ranged from MYR 301 million to MYR 768 million. These estimates can be used as a reference for public investment criteria. The findings suggest that there is merit in an upward revision of water tariffs if they provide improvements in water quality. 相似文献
16.
Natalie Chun 《国际水资源开发杂志》2014,30(4):662-679
Pricing policies can serve as a low-cost and effective tool for increasing access to water and sanitation services among poor households while allowing the provider to recover costs. An empirical model is applied to contingent-valuation survey data for water services in Cebu, Philippines. Pricing policies that utilizes a low one-time connection fee and differentiates tariffs based on wealth results in a 3 to 9-fold increase in water services access by poor households over the base pricing policy. The results provide evidence that price-discrimination techniques can be important tools toward achieving greater coverage and financial solvency of important services. 相似文献
17.
River water management is challenging not only since they are open systems with changing physical structures, but also because the water values are mostly unknown over varied sectors. If policymakers grasp water values, water management will be more efficient. This research intends to examine the values of water in agriculture, which receives the most substantial portion of water resources, with the values of water in the environment in Isfahan located in the Zayandehrood River basin of Iran. The consequences of contingent valuation and production function methods revealed that per cubic metre value of water is 13 times higher in the environment than agriculture. The government should reconsider the higher value of the environment despite it is a non‐market value. The contingent valuation model additionally proved that women exhibited 21% more willingness to pay than men in order to protect the environment; however, they are paid less by 36%. 相似文献
18.
Daniel El Chami Maroun El Moujabber Alessandra Scardigno 《Water Resources Management》2009,23(11):2361-2378
The Lebanese coast is highly subject to seawater intrusion and groundwater deterioration. The study is carried out in Byblos
district (Jbeil Caza) 35 km north of Beirut. It aims to investigate the seawater intrusion, to determine the regional water
balance of the region and finally to estimate the economic value of that water for agricultural use. The monitoring of the
aquifer was achieved through samples from different wells chosen randomly. As for the regional water balance, it was determined
with use of a GIS model. The economic evaluation was carried out, using the contingent valuation method to estimate the willingness
to pay of farmers to contribute to the improvement of groundwater quality; two alternative scenarios were proposed and compared
with the current situation. The annual regional water balance is positive, which means that the region is rich in water. The
monitoring results show that the coastal part of the region is slightly contaminated by seawater intrusion due to the excess
of pumping from the aquifer. The economic evaluation estimated that farmers would contribute by 102 US$ yr − 1 for the first proposal and 166.67 US$ yr − 1 for the second. 相似文献
19.
20.
招标工程量清单与工程造价控制 总被引:2,自引:0,他引:2
合理确定招标工程量清单是有效实施工程造价事前控制的重要环节。通过对一些工程的招标工程量清单暴露出来的问题进行分析 ,阐述了招标工程量清单的合理性对有效实施工程造价事前控制的重要作用 ;合理确定招标工程量清单 ,关键是要以工程的质量和造价控制目标为出发点 ,在遵循一般项目划分习惯的同时 ,密切结合工程实际以及合同条款的要求 ,进行具体分析 相似文献